Benjamin mellor of mark



in Model.)

- B. MELLOR 0F MARK.

PUMP.

' No. 510,983. Patented DBO. 19, 1893.

2's I: .1 1 i .1%

Berg Barman Jlfellor dqfirgz ys, I f M 1 I r M a UNITED STATES PATENTGenres.

BENJAMIN MELLOR OF MARK, OF ELLICOTT CITY, MARYLAND.

P U M P.

SPECIFICATION forming part of Letters Patent No. 510,988, dated December19, 1893. Application filed July 25, 1892. Serial No. 441,173-(NOJIlOdGL) To osZZ whom it may concern:

Be it known that I, BENJAMIN MELLOR of Mark, a citizen of the UnitedStates, residing at Ellicott Oity,in the county of Howard and State ofMaryland, have invented a new and useful Pump, of which the following isa specification.

My invention relates to improvements in pumps, and has special referenceto motors tures thereof will be particularly pointed out in the appendedclaim.

. In the drawings: Figure 1 is a view of my invention adapted to pumpwater from an elevated source. Fig. 2 is a partial view of the same,with the operating-lever reversed when it is desired to bring thepump-cylinder close to the source.

Referring to Fig. 1 of the drawings, the frame 1, is arranged inhorizontal position with its rear end substantially under the source 2,which in this case isillustrated as a tank provided with a faucet oroutlet 3, a receiver 4 being arranged beneath said outlet. Theoperating-lever 5 is fulcrumed at an intermediate point and is providedat its rear end with a dependingtilting-cup 6, which,

when the lever is elevated as shown in Fig. 1, is directly beneath theoutlet in position to receive the watertherefrom. A counterbalancingweight 7 is arranged upon the operating-lever upon the opposite side ofits pivotal point- 8 to normally hold the tilting cup n its elevatedposition. When full, the tiltmg cup is adapted to descend toward thereceiver, and the latter is provided with atriparm 9, which engages alip 10 upon the side of the tilting cup to tilt the latter and dischargeits contents into the receiver. After its contents have been discharged,the counter-balancing weight elevates the cup to its normal position. i

11 represents the pump-lever, fulcrumed at its end to a verticalstandard 12, and c0n= nected at the opposite end by means of a linkpoint of, use.

13 to the extremity of the shorter armof the operating-lever, whereby,as the longer arm of the operating-lever is depressed by the tilting cupwhen full, the longer arm of the pump-lever is elevated. Anoperating-weight let is adjustably secured to-the pump-lever near itsfree end, the function of said weight being to depress the pump-leverafter its elevation by the operating-lever, to operate the plunger-rod.The plunger-rod l5 isat-tached to an intermediate point of thepump-lever adjacent to its fulcrum, and the plunger 16, which isattached to the lower end of the plunger rod operates in a verticalcylinder 17, a supply-pipe 1S communicating with the lower end of thecylinder to receive the water as it is forced therefrom and convey it tothe A connecting-pipe 18 extends from the receiver to the lower end ofthe pump-cylinder to convey water from the former to the latter. Anupwardly-operating valve 19 is arranged in the mouth of theconnecting-pipe at the bottom of the cylinder to prevent the water frombeing forced backwardly th erethrongh.

The standard 22, upon which the operatinglever is fulcrumed, is steppedat its lower end in any one of a series of vertical perforations 23 inthe frame, and is held in such position by securing-nuts 24, whereby thesaid standard may be adjusted toward or from the source to increase ordiminish the leverage of the longer arm of the operating-lever,saidlever being provided with a series of transverse perforations 25, toreceive the transverse pivotbolt- 26, which is arranged in the upper endof the standard 22. The counter-balancing weight, which is secured tothe shorter arm of the operating-lever, is mounted to slide thereon andis provided with an ad- 3' usting-screw 27, whereby said weight may bearranged at any desired distance from the fulcrum point of the lever.The operating weight which is attached to the pump-lever, is similarlymounted to slide thereupon, and is provided with an adj listing-screw28, whereby it may be clamped at the desired point. The pump-lever isfurther provided with a series of perforations 29 to receive a transverse pin in the lower end of the connectinglink above mentioned,whereby the efiective portion of said lever may be shortened orlengthened at will. Said link is similarly perforated.

In Fig. 2 I have shown an arrangement of my invention in which theoperating-lever is reversed with relation to the pump -lever, wherebythe tilting cup is brought substantially over the pump-cylinder, therebybringmg said cylinder close to the receiver and shortening theconnecting-pipe between said parts. This is adapted for peculiarsituations in which it is impossible or impracticable to arrange theparts as shown in Fig. 1. lhe operation is the same in this form orarrangement of my invention as in that shown in Fig. 1.

The particular advantage of my invention lies in the fact that it may beemployed to force water to adistance when the fall of water from whichthe power is derived is small, and such as may be derived from a dam orfall in a small stream or branch.

Further advantages of my invention are simplicity of arrangement and thesmall number of parts employed.

In'operation, the tilting cup is filled from the source, and when fulldescends by gravty, thereby elevating the weighteden'd of thepump-lever. When the tilting cup reaches he trip, it discharges itscontents into the receiver, from whence or from any preferred source ofsupply water is conveyed by the connecting-pipe to the cylinder of thepump, and the tilting cup being relievedof its weight,

rises to its normal position, the weight upon the pump-lever meanwhiledepressing the said lever and forcing the water through the pp y-p p Itwill be seen that the active operation of pumping is accomplished by thegravitating weight which is attached to the pump-lever, the operatingdevices which are connected to said pump-lever in each case beingadapted merely to elevate said weighted lever.

It will be understood that thereceiver may be provided with any suitablemeans for allowing the escape of the surplus water which is not carriedoff by the supply pipe 18, or such receiver may be allowed to overflow.The amount of water required for the operation of the pump mechanism hasno definite relation to the amount of water which is received anddischarged by the pump cylinder, and the ratio of such quantities isproportionate t0,-t11e, distance which. the, pump is re quired tofo'rcethe water; For itis'tance, when a definite amountof water isrequired to be delivered at a given point the pump mechanism willrequirea certain quantity of water for its operation, and it thedistance through which the water must be forced isincreased, the amountof water required for the operation of the pump must be correspondinglyincreased in order to supply the additional power. The means ofadjustment of the weights and of the pivotal points of the levers enablethe period or rapidity of stroke of the pump to be regulated to suit thedistanee through which the pumpis required to force the water.

Having thus described my invention,what I claim, and desire to secure byLetters Patent, is j x In a motor for pumps, the combination with theplunger-rod, of a terminally-fulcrumed pump-lever pivotally connected atan intermediate point to said plunger-rod, a constant operating weightadj ustably connected to the free end of the pump-lever to vary thedepression upon the plunger-rod, an intermediately-fulorumedoperating-lever having its "shorter arm connected to the weighted end ofthe pump-lever and provided with an adjustable pivot to vary therelative lengths of the arms of the lever to suit the position of saidoperating-weight, a counterbalancingweight adjustably connected to theshorter arm of the operating lever, and a variable weight connected tothe longer arm of the operating-lever, said eounterbalancing-wei'ghtbeing adjustable toward and from the pivotal point of theoperating-lever to suit, the position of said point and cause the longerand shorter arms of the lever to counterbalance each other at anyadjustment of the pivotal point, whereby the relative avoirdupois' ofthe constant and variable weights may be regulated irrespective of thepivotal point of the operating lever,substan'tially as specified.

In testimony that I claim the foregoing as my own I have hereto atlixedmy signature in the presence of two witnesses.

BENJAMIN MELLOR OF MARK.

Witnesses:

JOHN T. THOMPSON, J. MALCOLM DORSEY.

